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I need some more regular expression help

Posted on 2003-02-27
Medium Priority
Last Modified: 2013-12-24
I'm having an issue creating a rule that detects if a word contains invalid characters. The word is validated through a form field. I do not want to use javascript. What I have so far is:

<cfelseif NOT REFindNoCase ('[a-z0-9-]',#form.base#)>
<cfoutput>Word contains invalid characters</cfoutput>

This code works great if the word I put in the form field is "@#$%@$#%" but if the word contains a-z or 0-9 AND invalid characters, "word@#$here" it doesn't give the error. The only characters I want to allow are a-z,0-9 and hyphens. Please help. Thank you.
Question by:fozzynet
  • 2

Accepted Solution

weeezl earned 300 total points
ID: 8036672
Try this:

<cfelseif NOT REFindNoCase ('^[a-z0-9-]+$',#form.base#)>
<cfoutput>Word contains invalid characters</cfoutput>


Expert Comment

ID: 8036761
This basically tells it to search from the beginning of the string to the end of the string looking for all matches.

If you want to learn about the functions, there's a good tutorial here:


Author Comment

ID: 8036806
This worked absolutely great. Thank you so much.

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